Model Crystal Renn is definitely trying to distant herself from being a plus-sized model. On Tuesday, the 25-year-old model stepped out for a charity event in New York City, and was barely recognizable. Known for her curves and long dark hair, Renn appeared a very-thin platinum blonde.

Renn became a successful size 14 model with Ford Models, but she hadn't always been that way. In 2009 the beauty wrote a memoir, Hungry: A Young Model's Story of Appetite, Ambition, and the Ultimate Embrace of Curves. The model's book reveals her struggle with anorexia. Renn at the age of 16 has been 5-foot-nine and 95 pounds.

Renn's anorexia stemmed from her an encounter with a modeling scout, who told her that she must lose 10-inches form her hips. The model lost the weight and was praised for her waif-like fram, her Facebook explains. But the model realized she wasn't living a healthy life, and in 2003 began to regain control of her life.

From there Renn began a successful transition into the world of plus-sized modeling. Renn struggles lead her to become a vocal advocate against overly skinny models, reports Shine from Yahoo, which is why her recent weight loss is raising eyebrows.

When this whole weight-loss thing happened, I think that a lot of people wanted to point their finger at somebody, said Renn in an interview that was posted on Ford's blog. They wanted to find a conspiracy where there absolutely was none.

Renn says that her weightloss is healthy and making her feel amazing. I felt comfortable with my body. I've been doing yoga for a while now, the model told People. That makes you aware of how your body moves. Renn has also turned to other forms of exercise like hiking.

But according to her agent, her weight-loss doesn't mean she's dropped the plus-sized model title. She is in between the two, her agent told ABC News.